Actions
All four quadriceps are powerful extensors of the knee joint. They are crucial in walking, running, jumping and squatting. Because rectus femoris attaches to the ilium, it is also a flexor of the hip. This action is also crucial to walking or running as it swings the leg forward into the ensuing step. The quadriceps, specifically the vastus medialis, plays the important role of stabilizing the patella and the knee joint during gait.
Read more about this topic: Quadriceps Femoris Muscle
Famous quotes containing the word actions:
“We should often be ashamed of our finest actions if the world understood all the motives behind them.”
—François, Duc De La Rochefoucauld (1613–80)
“Only the actions of the just
Smell sweet and blossom in their dust.”
—James Shirley (1596–1666)
“Coercion may prevent many transgressions; but it robs even actions which are legal of a part of their beauty. Freedom may lead to many transgressions, but it lends even to vices a less ignoble form.”
—Karl Wilhelm Von Humboldt (1767–1835)